All I know is that propulsion is dependent on alternating frames of temporal reference.

Harris points out that the scope of temporal reference covered by the standard English present-perfect is covered in Irish English by no fewer than five forms, as exemplified above.

The metadata includes information about the identification, constraint, extent, quality, spatial and temporal reference, distribution, lineage, and maintenance of the digital geographic dataset.

The 105th meridian west of Greenwich passes through Union Station and is the temporal reference for the Mountain Time Zone.

The earliest point at which these attestations can be evaluated as true or not serves as the secondary temporal reference for such constructions.

The instrumental is used to mark instruments in a broad sense, and also for temporal reference:

However, Maximus makes no precise geographic or temporal references regarding Solutor, Octavius, and Adventor.

(It is surely no coincidence that each book's title contains a temporal reference, given the importance of time and its passing as a theme in Gioia's poetry.)

Since the data signals are provided with a temporal reference by the clock signals, the clock waveforms must be particularly clean and sharp.

The book is written entirely in the present tense, and rarely gives temporal references.